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  <section id="source-logging-functions">
<h1>Source logging functions<a class="headerlink" href="#source-logging-functions" title="Permalink to this heading"></a></h1>
<p>The <code class="xref py py-mod docutils literal notranslate"><span class="pre">gslab_make</span></code> library provides functions to log symbolic linking/copying activity and information about source files. The logs are intended to facilitate the reproducibility of research.</p>
<dl class="py function">
<dt class="sig sig-object py">
<span class="sig-name descname"><span class="pre">write_source_logs</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">paths</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">source_map</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">depth</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">inf</span></span></em><span class="sig-paren">)</span></dt>
<dd><p>Logs the following information for sources contained in list <code class="docutils literal notranslate"><span class="pre">source_map</span></code>
(returned by <a class="reference internal" href="sourcing.html#sourcing-functions"><span class="std std-ref">sourcing functions</span></a>).</p>
<ul>
<li><p>Mapping of symlinks/copies to sources (in file <code class="docutils literal notranslate"><span class="pre">source_maplog</span></code>)</p></li>
<li><p>Details on files contained in sources:</p>
<blockquote>
<div><ul class="simple">
<li><p>File name (in file <code class="docutils literal notranslate"><span class="pre">source_statslog</span></code>)</p></li>
<li><p>Last modified (in file <code class="docutils literal notranslate"><span class="pre">source_statslog</span></code>)</p></li>
<li><p>File size (in file <code class="docutils literal notranslate"><span class="pre">source_statslog</span></code>)</p></li>
<li><p>File head (in file <code class="docutils literal notranslate"><span class="pre">source_headlog</span></code>, optional)</p></li>
</ul>
</div></blockquote>
</li>
</ul>
<p>When walking through sources, float <code class="docutils literal notranslate"><span class="pre">depth</span></code> determines level of depth to walk.
Status messages are appended to file <code class="docutils literal notranslate"><span class="pre">makelog</span></code>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>paths</strong> (<em>dict</em>) – Dictionary of paths. Dictionary should contain values for all keys listed below.</p></li>
<li><p><strong>source_map</strong> (<em>list</em>) – Mapping of symlinks/copies (destination) to sources (returned by <a class="reference internal" href="sourcing.html#sourcing-functions"><span class="std std-ref">sourcing functions</span></a>).</p></li>
<li><p><strong>depth</strong> (<em>float</em><em>, </em><em>optional</em>) – Level of depth when walking through source directories. Defaults to infinite.</p></li>
</ul>
</dd>
<dt class="field-even">Path Keys<span class="colon">:</span></dt>
<dd class="field-even"><ul class="simple">
<li><p><strong>source_statslog</strong> (<em>str</em>) – Path to write source statistics log.</p></li>
<li><p><strong>source_headslog</strong> (<em>str, optional</em>) – Path to write source headers log.</p></li>
<li><p><strong>source_maplog</strong> (<em>str</em>) – Path to write source map log.</p></li>
<li><p><strong>makelog</strong> (<em>str</em>) – Path of makelog.</p></li>
</ul>
</dd>
<dt class="field-odd">Return type<span class="colon">:</span></dt>
<dd class="field-odd"><p>None</p>
</dd>
</dl>
<p class="rubric">Example</p>
<p>The following code will log information for all files listed in <code class="docutils literal notranslate"><span class="pre">source_map</span></code>.
Therefore, files contained in directories listed in <code class="docutils literal notranslate"><span class="pre">source_map</span></code> will be ignored.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">write_source_logs</span><span class="p">(</span><span class="n">paths</span><span class="p">,</span> <span class="n">depth</span> <span class="o">=</span> <span class="mi">1</span><span class="p">)</span>
</pre></div>
</div>
<p>The following code will log information for all files listed in <code class="docutils literal notranslate"><span class="pre">source_map</span></code>
and any file in all directories listed in <code class="docutils literal notranslate"><span class="pre">source_map</span></code>, regardless of level of subdirectory.</p>
<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="n">write_source_logs</span><span class="p">(</span><span class="n">paths</span><span class="p">,</span> <span class="n">depth</span> <span class="o">=</span> <span class="nb">float</span><span class="p">(</span><span class="s1">&#39;inf&#39;</span><span class="p">))</span>
</pre></div>
</div>
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